摘要:
A copper-clad laminate of a highly-elastic glass fabric base material/thermosetting resin formed of prepreg obtained by impregnating a glass fabric base material made of a glass woven fabric having a thickness of 25 to 150 μm, a weight of 15 to 165 g/m2 and a gas permeability of 1 to 20 cm3/cm2/sec. with a thermosetting resin composition and drying it.
摘要翻译:一种高弹性玻璃织物基材/热固性树脂的覆铜层压板,其由预浸料形成,所述预浸料通过浸渍由厚度为25至150μm的玻璃织物制成的玻璃织物基材,重量为15至165g / m 2,气体渗透率为1至20cm 3 / cm 2 / sec。 用热固性树脂组合物干燥。
摘要:
A method of drilling a through-hole in a printed circuit board panel, which comprises placing a water-soluble lubricant sheet on one surface or each of two surfaces of a printed circuit board panel and drilling a through-hole through the printed circuit board panel, the water-soluble lubricant sheet being composed of a mixture of 20 to 90% by weight of a polyethylene glycol having a weight average molecular weight of not less than 10,000 with 10 to 80% by weight of a water-soluble lubricant and having a thickness of 0.05 to 3 mm.
摘要:
A thermosetting resin composition polyfunctional cyanate ester resin composition comprising:(I) a cyanate ester compound selected from the group consisting of a polyfunctional cyanate ester having at least two cyanate esters in its molecule, a prepolymer of such a cyanate ester and mixtures thereof; and(II) at least one non-branched aromatic compound in an amount of 5-40% by weight of the total resin composition, said aromatic compound having a number-average molecular weight of 178-800, an average number of aromatic nuclei of 2-6, and a boiling point of more than 300.degree. C., and in which the portion having aromatic nuclei of 2-6 constitutes more than 50% is disclosed.
摘要:
An adhesive composition comprising at least(A) at least one cyanate ester compound selected from the group consisting of:(i) polyfunctional aromatic cyanate ester monomers having the formulaR--O--C.tbd.N).sub.n wherein n is integer of 2-10 and R is an aromatic organic group, the cyanate groups being bonded to an aromatic ring or said aromatic organic group;(ii) homoprepolymers of (i) and(iii) coprepolymer of (i) and an amine, and(B) at least one thermoplastic saturated polyester resin which is non-crystalline, substantially non-crystalline or of low crystallinity is disclosed. The adhesive composition has excellent heat resistance, moisture resistance and chemical resistance.
摘要:
A process for producing a curable resin comprises reacting (a) at least one cyanate ester compound selected from the group consisting of polyfunctional cyanate esters having 2 or more cyanato groups per one molecule, prepolymers of the cyanate esters or mixtures thereof with (b) at least one compound having 1,2-epoxy group(s) and radical-polymerizable unsaturated double bond(s) in its molecule, the cyanate ester compound (a) and the compound (b) being used so that the ratio of the cyanato group to the 1,2-epoxy group is in the range of about 1:0.25 to about 1:2, in the presence of (c) a radical polymerization inhibitor at a temperature of about 90.degree.--about 140.degree. C.The curable resin produced according to the present invention is capable of giving cured products having excellent heat resistance and electrical properties.
摘要:
A photo-curable resin composition is disclosed comprising (i) a mixture and/or a preliminary reaction product of (a) at least one cyanate compound selected from the group consisting of polyfunctional cyanate esters, prepolymers of the cyanate esters, coprepolymers of the cyanate esters and an amine and mixtures thereof, (b) at least one compound selected from the group consisting of monomers having at least one olefinically double bond prepolymers of the monomers, liquid rubbers having one or more acryloyl or methacryloyl groups and mixtures thereof and optionally (c) at least one maleimide compound selected from the group consisting of polyfunctional maleimides, prepolymers of the maleimides, coprepolymers of the maleimides and an amine and mixtures thereof and (ii) a photo polymerization initiator or a photo sensitizer.
摘要:
A crosslinkable resin composition comprising (A) a polyethylene resin composition containing 0.1 to 10% by weight of a crosslinking agent and (B) a thermosetting resin composition selected from the group consisting of cyanate ester resin compositions, polyester resin compositions and epoxy resin compositions; said crosslinkable resin composition comprising (1) 95 to 5% by weight of the resin composition (A) and 5 to 95% by weight of the resin composition (B) when the resin composition (B) is a cyanate ester resin composition, and (2) 95 to 20% by weight of the resin composition (A) and 5 to 80% by weight of the resin composition (B) when the resin composition (B) is a polyester resin composition or an epoxy resin composition; and a method for producing a laminate using said composition.
摘要:
A resin composite copper foil comprising a copper foil and a resin layer containing a block copolymer polyimide and a maleimide compound, the resin layer being formed on one surface of the copper foil, a production process thereof, a copper-clad laminate using the resin composite copper foil, a production process of a printed wiring board using the copper-clad laminate, and a printed wiring board obtained by the above process.
摘要:
There are disclosed a nonwoven reinforcement for a printed wiring base board which nonwoven reinforcement contains a wet system nonwoven fabric constituted of thermotropic cystalline polyester fiber having a melting point of 290° C. or higher (component A) and a thermotropic cystalline polyester binder which has a melting point of 290° C. or higher and is in the form of a film having holes including at least 5 holes/mm2 each with an area of opening of 400 to 1000 &mgr;m2 (component B), the component A being fixed by the component B; a process for producing the above nonwoven reinforcement; a printed wiring base board produced from the above nonwoven reinforcement; and a printed wiring board produced from the above printed wiring base board. The nonwoven reinforcement and the printed wiring (base) board are excellent in various performances such as uniformity, dimensional stability, heat resistance and electrical characteristics such as dielectric constasnt and dielectric loss tangent.
摘要翻译:公开了一种用于印刷布线基板的无纺布加强件,其中非织造材料增强件包含由熔点为290℃或更高的(A组分)的热致变性结晶聚酯纤维构成的湿系非织造织物和具有 熔点为290℃以上,并且为具有包含至少5个孔/ mm 2的孔的膜的形式,每个孔的开口面积为400〜1000mum2(B成分),成分A被固定在 组分B; 一种生产上述无纺布增强件的方法; 由上述无纺布加强件制成的印刷布线基板; 以及由上述印刷布线基板制造的印刷电路板。 非织造布加强件和印刷布线(基底)板在诸如均匀性,尺寸稳定性,耐热性和电特性如介电常数和介电损耗角正切性等各种性能方面都是优异的。
摘要:
The invention is a process for making a cyanate ester resin cured product by (1) adding organic metal compound (a) and triethanol amine(b) to a cyanate resin composition which is flowable at a temperature of not more than 50.degree. C. comprising as its main component polyfunctional cyanate ester compound having at least two cyanate groups, thereby forming a cyanate resin composition having 0.1-5% by weight of (a) and 0.1-5% by weight of (b), which is flowable at a temperature of not more than 50.degree. C.; (2) molding the composition at a temperature of not more than 50.degree. C. (3) primary curing at a temperature of not more than 50.degree. C.; and (4) post-curing at a temperature of not less than 170.degree. C.